Homogenous bimetallic catalysis on amination of ArX and ArX2 in aqueous medium-synergistic effect of dicopper complexes
摘要:
A dicopper complex [Cu-2(bpnp)(OH)(CF3COO)(3)] (1) (bpnp=2,7-bis(pyridin-2-yl)-1,8-naphthyridine) was found to be an excellent catalyst on amination of aryl halides and aryl dihalides with ammonia in aqueous solutions leading to the corresponding anilines and aryldiamines, respectively. Catalytic activity of 1 toward amination appears to be superior to those of other mono nuclear copper complexes. Furthermore, the bimetallic catalyst 1 gave exclusively diamination product in the reaction of ArX2 with ammonia, but other copper complexes showed poor selectivity. Kinetic product distribution study suggests that the dicopper metal ions in this catalysis promote the second amination efficiently. (C) 2012 Elsevier B.V. All rights reserved.
[EN] PIPERIDINYL-SUBSTITUTED LACTAMS AS GPR119 MODULATORS<br/>[FR] LACTAMES À SUBSTITUTION PIPÉRIDINYLE COMME MODULATEURS DE GPR119
申请人:ARRAY BIOPHARMA INC
公开号:WO2011146335A1
公开(公告)日:2011-11-24
Compounds of Formula (I): and pharmaceutically acceptable salts thereof in which X1, X2, L, R3, R4, R5, R6, R6a, R7, R9, R9a, and n have the meanings given in the specification, are modulators of GPR119 and are useful in the treatment or prevention of diseases such as such as, but not limited to, type 2 diabetes, diabetic complications, symptoms of diabetes, metabolic syndrome, obesity, dyslipidemia, and related conditions.
[EN] (AZA)INDOLE-, BENZOTHIOPHENE-, AND BENZOFURAN-3-SULFONAMIDES<br/>[FR] (AZA)INDOLE, BENZOTHIOPHÈNE ET BENZOFURAN-3-SULFONAMIDES
申请人:UCB PHARMA GMBH
公开号:WO2018122232A1
公开(公告)日:2018-07-05
Disclosed are sulfonamide compounds with GPR17 modulating properties, which are useful for treating or preventing a variety of CNS and other diseases, in particular for preventing and treating myelinating diseases or disorders.
Mild and Highly Selective Palladium-Catalyzed Monoarylation of Ammonia Enabled by the Use of Bulky Biarylphosphine Ligands and Palladacycle Precatalysts
作者:Chi Wai Cheung、David S. Surry、Stephen L. Buchwald
DOI:10.1021/ol401612c
日期:2013.7.19
A method for the Pd-catalyzed arylation of ammonia with a wide range of aryl and heteroaryl halides, including challenging five-membered heterocyclic substrates, is described. Excellent selectivity for monoarylation of ammonia to primary arylamines was achieved under mild conditions or at rt by the use of bulky biarylphosphine ligands (L6, L7, and L4) as well as their corresponding aminobiphenyl palladacycle
Materials for inducing alignment in liquid crystal and liquid crystal displays
申请人:——
公开号:US20010039361A1
公开(公告)日:2001-11-08
The present invention provides novel aromatic diamines useful in preparing polyimides for optical alignment layers in liquid crystal displays. The novel compositions comprise side-chains general formula I
-L
1
-D-L
2
-C
f
wherein D comprises 1 to 4 carbon-carbon double bonds, C
f
is a monovalent C
4
to C
20
fluorocarbon radical and L
1
and L
2
are linking groups.
本发明提供了一种新型芳香二胺,用于制备液晶显示器中的光学调向层的聚酰亚胺。这种新型组合物包括侧链通式I
-L
1
-D-L
2
-C
f
其中D包括1至4个碳-碳双键,C
f
是一种一价的C
4
至C
20
氟碳基团,L
1
和L
2
是连接基团。
C5-ANILINOQUINAZOLINE COMPOUNDS AND THEIR USE IN TREATING CANCER
申请人:AstraZeneca AB
公开号:US20180312490A1
公开(公告)日:2018-11-01
The invention concerns compounds of Formula (I):
or pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
and R
4
have any of the meanings hereinbefore defined in the description; process for their preparation; pharmaceutical compositions containing them and their use in treating KIT mediated diseases.